Forepart-turning machine



Patented Mar. 13, i923.

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ANDREW nrrnnn, or LYNN'arAss/icnnsnrfrs, AssreNon iro rUNITED SHOE MAorrIN- nrw CORPORATION, or raras-SON, Nnw .rasen-, A CORPORATION or Nnw Jirnsum FOREPARTeTURNING MIAGE-HNE.

Application led February 14, 1920. Serial No. 358,575.

10 all w 7mm t may concern Be it known that I, ANDREW Errnnn, a

citizen of the United States, residing at Lynn, in the county of Essex andvState of Massachusetts, have invented certain new and useful Improvements in Forepart- Turning Machines; and I do'hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to shoe turning machines and more particularly to machines of this character employed for turning the forepart of a shoe.

Shoe turning machines of this character, in which the turning instrumentalities are manually actuated, have certain features of advantage over those machines in which the turning instrumentalities are actuated. by power, more particularly because of the 1ntimate control which may be exercised by the operator in the manually actuated ma,- chines. v

It is the object of therpresent invention therefore to incorporate in a forepart turning machine of the type in which the turning instrumentalities are manually actuated, certain new features of construction which tend to simplify the turning Operation and leave the operator entirely free to manipulate the shoe upper as desired, and aid in the functioning of the machine.

lli/ith this object in view the invention consists incertain novel features of construction, combination, and arrangement of parts hereinafter described and claimed, the advantages of which will be obvious to those skilled in the art from the following desc ription.

`In the accompanying` drawings illustrating the preferred form of the invention7 Figure 1 represents aside elevation of a forepart turning machine embodying the several features of the` invention. Fig. 2 is a detail illustrating a front elevation of the forepart spreader, and Fig. 3 is a detail showing a top plan view of the spreader mechanism illustrated in Fig. 2.

The forepart turning machine of the present invention comprises generally a turning post about which the shoe is bent, a heel engaging member connected with treadle mechanism and adapted to draw the shoe over the turning post, and a forepart 2 spreader member adapted to distend thev forepartpf the shoe and retain it in position during the .turning'operation In the illustrated embodiment of the invention, the turning post is connected with the heel member in such a manner that as the latter moves downwardly to perform the turning operation, the turning post is moved in the same direction at one-half the speed to correspond with the movement `of the shoe.

, The machine shownin the illustrated embodiment of the invention comprises generallya vertical turning post 10, a heel engaging member consisting of two co-operating lclamps 12 vand 13, and a` forepart spreader -indicated generally at 15. The shoe to be turned is bent over the turning post in the usual manner with the heelseat engaged between the clamps 12 andv 13-and the forepart spreaderl member received within the forepart of the shoe. The clamp 12 is formed integral with a vertical slide 16, upon which is fulcrumed av bell-crank lever 18 carrying the clamp 13. n This bellcrank lever is connected with a treadle 20, through a link 22, a pivoted arm 24, and a connecting rod 25. This system of connections is such that upon depressing the treadle the clamp member 13 is first moved toward the clamp 12 to engage theheel of the shoe, and thereafter a continued depression of the treadle moves theslide 16 carrying bothvclamps downward to draw the shoe over the turning post 10. This movement of the slide 16 actuates theturning post in the same direction througha series of internieshing,racks and gears. As shownyin Fig. l, the lower end of the slide 16 isprovid'ed with a` rac-k 8O engagingw-ith a. `gear 31 which meshes with a large vintermediate `gear 32 carrying a smaller driving pinion tion7 the turningof the forepartimay be ac complished without placingany excessive strain upon the operator. The `complete turning of the toe portion of the shoev is-sey cured by an iron 36 detachably secured to the front of the machine frame and having its upper end located adjacent to the end of the forepart spreader. After the turning ilo turning operation it is desirable that the spreader member shall be removed from the immediate proximity of the turning post in order to permit of the convenient application and removal oi a shoe. The present invention 'contemplates mechanism for locking the forepart spreader in position adjacent the turningvpost during the turning operation and for automatically unlocking and removing` the spreader from operative position at the completion of the turning operation. Y'Vith the forepart spreader' member held positively in position during the turning operation, the hands ot the operator are leit entirely free to manipulate the upper and aid in working the shoe over the turning post which, it will be readily understood, is a great advantage in this type of machine.

In the simplest and most efiicient form of the invention which has yet been devised, the forepart spreader member is mounted in such a position thatit will normally swing away from the turning post when released, mechanism being provided for locking the spreader in operative position when moved thereinto by the operator. This locking mechanism is conveniently connected with the treadle mechanism in such a manner that it is automatically released at the completion of the turning operation.

As shown in the drawings, the orepart spreader comprises two spreader fingers 50 and 5l, which are respectively mounted upon the outer ends ot' the two arms 53 and 54, moved toward vand Jfrom one another through a right and left hand adjusting screw 55. As shown more particularly in Figs. 2 and '3 of the drawings, the adjusting screw is loosely received in a depending portion 56 of the head 52 and is provided with threaded portions engaging with similarly threaded bosses 6l connected to the arms Jr'or swivelling movement. The screw is reta-ined against movement transversely of the hea-d l52 through collars 57 secured to the screw and engagingl with opposite sides ci. the head. ln addition to the simultaneous adjustment oi the fingers toward and from one another, they are independently adjustable upon their respective arms through the pro vision of angularly disposed slots 60 which receive clamping members 62 threadedlv engaging in the ends of the arms. The head 52, as shown more particularly in Fig. 3 of the drawings', is provided with oppositely neas, 1 1 i extending trunnions 58 which are journaled in an overhanging yoke 59. These trunnions are so disposed with relation to the head 52 ythat when released, the head normally tends to swing forwardly moving the fingers into an inclined position in which the shoe may be readily applied to or removed from the machine. The arms carrying the spreader lingers are pivoted at their rear ends to a transverse bar 65 provided with a central hub 66 which is vsecured to a connecting stud 67 through a set screw 68 as indicated in Fig. l. The stud 67 is received and supported in the rear end of the head 52 and held in position by a holding` screw 70 threaded in the head as shown in the drawings and having its rear end engaging with the stud G7. rThrough the provision of this mechanism, a bodily vertical adjustment of the spreader fingers may be secured relative to the head. and yoke 59.

The yoke 59 is provided with a supporting stem 7l which is received in the upper end oi the machine trame and held in position by a set screw 72. As will be vobserved from an. inspection of Fig. l, the set screw engage-s with an elongated recess 7 3 formed in the stein which permits a bodily adjustment of the yoke and forepart spreader member carried thereby t move the spreader member toward and away from the turning post when so desired. The spreader member is normally locked in the operative position shown in Fig. l by a detent which engages beneath the tooth 76 termed upon the head 52. The detent 75 is normally retained in locking position by a spring 78 and is provided with a stem 80 slidingly received within. the stem 7l. The rear end oft the stem SO is connected with a releasing bar 82 through a bell-crank 841: pivoted upon an arm 85 secured to the stem 7l and engaging behind a pin 86 mounted in the stem 80. As will be vobserved from an inspection oi' Fig. l, the releasing bar 82 is connected at its lower end with a projection 87' extending from/the pivoted arm 2li in such' a manner that the releasing bar is gradually elevated during the continuance of the turning operation. The upper end ot the releasing bar is provided with spaced collars 89 and 90 adapted to engage with opposite sides of one. arm of the bell-crank lever 84. These collars are spaced a sutiieient distance apart to permit an elevation et the releasing bar throughout 'the turning operation without operating the bell-crank lever, but at the completion oli the turning operation the lower collar 90 engages beneath the bell-crank to rock the latter and move the detent 75 outwardly. rlhis permits the orepart spreaderk to swing forwardly into an inclined position in which the shoe may be removed. After a new shoe has been applied to the machine, the

' upon the upper.

forepart spreader mayv be swung back to vertical position, the cle-tent riding over the rounded upper face of the .tooth 76.

It Will be obvious to those skilled in the art that this construction permitsfthe operator to devotefhis entire attention to manipulating the upper of Ithe shoe as the latter is turned over the turning post, and at the same time to instantlystop theturning operation if too great-a strain isplaced Furthermore, the provision of mechanism for varying the position of the spreadingl member Wit-hrelation totheturning post and the spreader lingers with relation. to one. another enlarges. the capacity of the machineand enables it to be. successfully employed. for turning shoes of widely varying styles and sizes.

Vhile it is preferred to employ the specie construction and arrangement of parts shown and described, it. will beunderstood that this construction and arrangement is not essential ecept so far as specified in the claims, andmay bechanged or modied without departing from the broader features of the invention.

rlhe invention having been described, what is claimed is: l

1. A shoe turning machine having, in combination, a. turning post, a forepart spreader member for engaging with the shoe at one .side of the turning post, a heel retaining member for engaging with the shoe upon the opposite side of the post, means for actuating the heel engaging member and turning post to turn the shoe, and means for locking` the forepart spreader in position adjacent the post adapted to automatically release the spreader at the completion of the turning movement.

2. A shoe turning machine having, in combination, a turning post, means for retaining the shoe bent over the post, including a fore-part spreader and heel clamping` members, mechanism for actuating the heel clamp and turning post to turn the shoe, and means for locking the forepart spreader in a posit-ion in proximity to the turning post controlled by the actuating mechanism.

3. A shoe turning machine comprising a turning post, a forepart spreader adapted to normally move away from the post, means for drawing the shoe over the turning post, and means for locking the fo-repart spreader in position adjacent the post adapted to automatically release the spreader at the completion of the turning operation. A

Li. A shoe turning machine` having, im combination, a turning post, a forepart spreader for engaging with the shoe at one side of the post. a heel retaining member for engaging with the shoe upon the opposite side of the post, a manually actuated arm for moving the heel member to draw the shoe over the post, means for locking the forepart spreader in position adjacent the post. and connectionsbetiveen the arm and mg turning members positioned` upon op'- positesides of vthe, post including a. forepart spreader, means kfor normally supporting the forepart spreader in an inclined position With respect. to the path of movement of the post, means for looking the forepart spreader in proximityr to the post'and sub- -stantially parallel thereto, and connections .between the locking means and actuating mechanismA forv releasing the forepart spreader at the completion of the turning operation.

6. A shoe turning machine comprisinga head, tivo arms pivotallyy connectedjivith the vlieachmeans for simultaneously adjusting the arms toward and from one another, tivo spreader fingers each having an'arcuate slot formeel therein, and means for connecting each spreader finger to one of the arms in a manner to permit adjustment of the finger about its end with relation to the arm through the provision of the slot.

7. A shoe turning machine comprising a supportingv yoke, a head pivotally mounted between the arms of the yoke and adapted to normally move into aninclined position, spreader fingers connected with the head, and a locking detent slidingly supported in the yoke and adapted to engage With the head and restrainthe latter against movement into an inclined position.

8. A shoe turning machine having, in combination, a turning post, separate members including a forepart spreader engaging with the shoe upon`opposite sides of the post to retain the shoe bent over they post,l

mechanism for moving one of the members, together with the post, vto turn the shoe thereover, and means for locking the spreader member in positionvadjacent the post adapted when released to permit movement of the member away from the post to permit removal of the shoe therefrom.

9. A shoe turning machine having,A in combination, a turning post, a forepart spreader member at one side of the post, a pair of heel clamping members upon the opposite side of the post, mechanism for iirst closing the heel clamping members, andk for thereafter actuating'bothlieel clamping members and the turning post to turn the shoe thereover, and means connected with the actuating mechanism for locking the forepart spreader in operative position dur ing the turning operation, and for,v automatically releasing the forepart spreader member at the completion of the movement of the normally locking the pivoted head, and a' releasing` member' connected to the arm and adapted to disengage the locking member when the turning movement of the heel clamping member is substantially completed. A i

ll. A shoe turning machine comprising a turning post, a forepart spreader member, a pivoted head supporting the member, a 'sliding detent for normally locking the pivoted head, a bell cranls: lever having one arm connected With the detent, and a. releasing bar loosely connected With the bell crank lever to actuate the latter and disengage the detent at the completion of the movement of the releasing bar in one direction.

l2. A shoe-turning machine comprising,

in combination, means to turn a shoe including a sole support and means to move the shoe longitudinally with respect thereto to turn it,v auxiliary means to cooperate in holding the shoe bent over the support, and a connection from the shoe-moving means to release the auxiliary means for engagement with the shoe.

13. A shoe-turning machine compris-ing, in combination, means including a toe support for holding and turning a shoe, and treadle-controlled means for turning the toe support to an idle position at the conclusion of the turning operation to facilitate removal of the turned shoe.

14C. A shoe-turning machine comprising, in combination, shoe-turning means including relatively adjustable tiltablev members for spreading the toe portion of a shoe',v and treadle-controlled means for tilting said members at the conclusion of the turning operation.

ANDREV EPPLER. 

